code: def generate_id_map(symbols: List[str]) -> Dict[str, int]:
      """Generate ID maps, i.e., map a symbol to a unique ID.
      Args:
        symbols:
          A list of unique symbols.
      Returns:
        A dict containing the mapping between symbols and IDs.
      """
      return {sym: i for i, sym in enumerate(symbols)}
  
file_path: espnet/egs2/cmu_indic/tts1/pyscripts/k2/prepare_lang.py
imports: import argparse
  import math
  from collections import defaultdict
  from pathlib import Path
  from typing import Any, Dict, List, Tuple
  import k2
  import torch
  from icefall.lexicon import read_lexicon, write_lexicon
  from espnet2.utils.types import str2bool
label_desc: Use image node_id 6 for calling a global function with example usage: generate_id_map(symbols) and returns: unknown